Rafael Rivera-Yankovich

Ms. Amarily Maldonado, Esq. joined Casillas, Santiago & Torres, LLC in April 2018, where she serves as an Attorney in the Corporate and Tax Divisions. Prior to joining the firm, Ms. Maldonado was a Senior Manager in the Tax Advisory Division of a major international accounting firm in Puerto Rico, where she tenured for six years. Ms. Maldonado commenced her career as an Associate in the Corporate Tax practice of one of the Big Four accounting firms and also served as a corporate and tax a...

Mrs. Carballo Chairs McConnell Valdés' Tax Practice Group. She focuses her practice on complex corporate tax matters, including startup operations, inbound and outbound corporate reorganizations, acquisitions, financings, exit strategies, legislative affairs, tax incentives and exemptions, and competent authority proceedings between the Puerto Rico Treasury Department and the Internal Revenue Service. A substantial part of her practice is devoted to tax minimization strategies through ...

Carlos A. Valldejuly-Sastre is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative Law, Arbitration and Mediation, Competition / Antitrust Law and Litigation. Carlos A., who practices law in San Juan, Puerto Rico, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Carlos A. is held by other top lawyers in the same geographic and legal practice area.

Maristella Collazo-Soto is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law. Maristella, who practices law in San Juan, Puerto Rico, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Maristella is held by other top lawyers in the same geographic and legal practice area.

He focuses his practice on the qualification and administration of Puerto Rico dual qualified retirement plans and counsels management in a variety of employee benefit related matters. He represents clients before the U. S. Department of Labor, the IRS and the Puerto Rico Department of the Treasury. With over 20 years of experience, he has significant experience and expertise in structuring and implementing employee benefit programs, advising on a variety of Puerto Rico and federal tax issues...

She concentrates her practice in intellectual property and commercial litigation cases. Ms. Peñagarícano was part of the State Department Committee that drafted the new Trademarks Act of Puerto Rico and the Regulation for the Registration of Trademarks in Puerto Rico. She was the President of the Intellectual Property Committee of the PR Bar Association and, under her presidency, the Committee drafted the Right of Publicity bill, the Trade Secrets bill, and the Moral Rights bill...

Mr. Marqués-Díaz chairs McConnell Valdés' Litigation Practice Group. His practice includes general civil and commercial litigation before the Puerto Rico and federal courts, concentrating in local appellate practice, constitutional, tax, consumer class action, administrative, insurance - including healthcare insurance litigation - and land use litigation. Mr. Marqués-Díaz has a solid constitutional law practice. He has argued many cases involving constitutio...

Ms. Corrada has nearly 20 years of experience in Environmental Law. She regularly provides counseling to clients on permitting, enforcement and compliance with environmental and land use laws and regulations. She began her career in the public service, in the Puerto Rico Environmental Quality Board, where she assisted the Air Quality Area in drafting and enacting amendments to air regulation which would allow enforcing the Clean Air Act's Title V, and adopting the State Implementation Plan in...

Maité Medero is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law and Litigation. Maité, who practices law in San Juan, Puerto Rico, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Maité is held by other top lawyers in the same geographic and legal practice area.

José E. Villamarzo Santiago is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. José E., who practices law in San Juan, Puerto Rico, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which José E. is held by other top lawyers in the same geographic and legal practice area.